Sheikh Moaz Al-Khabib, President of the National Coalition of Syrian Revolutionary and Opposition Forces.

Syria's main opposition leader, Moaz Alkhatib, on Monday said he is prepared to talk to President Bashar al-Assad about ways for him to "leave peacefully," according to Reuters.

Alkhatib, who came under fire after he first voiced willingness to negotiate with Assad in comments last week, hit back at critics on Monday. He said it was not "treachery" to seek dialogue with Assad, whose forces have beenlocked in a brutal conflict with an armed anti-government uprising in violence that has killed over 60,000 people, reported Reuters.